Machine for cutting embroidery foundation.



A. TSGHERNE.

MACHINE FOB CUTTING EMBROIDERY FOUNDATION.

APPLICATION FILED AUG. 16, 1911.

Patented Apr.9, 1912.

UNITED STATES FATENT @FFIQE.

ALOIS TSGHERNE, 0F RORSCI-IAGH, SWITZERLAND, ASSIGNOR TO THE FIRM OFHENRI 'LEVY, OF RORSCI-IACI-I, SWITZERLAND.

MACHINE FOR CUTTING EMBROIDERY FOUNDATION.

Specification of Letters Patent.

Patented Apr. 9, 1912.

To all whom it may concern:

Be it known that I, ALOIS Tsoi-inRNE, a subject of the Emperor ofAustria-I-Iungary, residing at Rorschach, Hafenplatz, Switzerland, haveinvented new and useful. Improvements in Machines for Cutting EmbroideryFoundation; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to letters orfigures of reference marked thereon, which form a part of thisspecification.

A number of arrangements of machines for cutting embroidery foundationalong the edge of the embroidery have been devised heretofore. It is awell known fact, that the embroidery does not reach to both ends of thestrip forming the embroidery foundation. The embroidery foundationpossesses on both ends an unembroidered portion which hitherto could notbe cut by the knife of said machines, but was to be cut by hand, withscissors for instance.

My present invention has for its object to cut by the machine also theunembroi ered ends of the embroidery foundation. To this end I providein the cutting device second cutting means opposing the fabric.

A construction according to this invention is illustrated by way ofexample in the accompanying drawing in whichv Figure 1 shows the devicein elevation,

parts being omitted. Fig. 2 is a plan view of the same, partly insection, Fig. 3 illus trates the working of the device, and Fig. 4: isan end view of the latter.

A slot 1 (Fig. 2) is bounded at one side by a knife 2 and at the otherside by a guide plate 3, both the knife and plate being mounted on acarrier. The embroidery foundation 4 is guided through the slot 1 inorder to be out along the edge 5 of the embroidery. Since the slot 1 isof such width that the embroidery foundation passes freely through itthe knife 2 cannot cut the unembroidered portion 6 located on that endof the embroidery foundation which is first introduced into the slot.For cutting this embroidered portion 6 a second knife 7 is pivotallyconnected to the knife carrier 8. The part 7 a of the knife 7 which isprovided with the cutting edge projects into the slot 1 while the lowerpart 7 is acted on by a spring 9.

Then the fabric is moved with relation to the knife 7 while the portion6 of the fabric is guided through the slot 1 2'. 6. over the guide plate3 and under the carrier 8 as shown in Fig. 3, the knife 7 cuts the saidportion to the beginning of the edge 5 of the embroidery. As soon as theknife 2 gets to the edge it begins to cut the embroidery foundationalong the edge of the embroidery.

An advantage is obtained by the elastic arrangement of the knife 7. Bythis arrangement the knife is capable of yielding when touching thefabric-dust accumulated in the slot, whereby another part of the edge ofthe knife is caused to out. If hereby the tension of the spring 9becomes very large the pressure of the fabric-dust is overcome and thelatter is thrown upward and thus removed from the slot. The knife 7could be arranged also before as well as be hind the slot. 7

What I claim as new and desire to secure by Letters Patent of the UnitedStates is:

1. In a machine for cutting embroidery foundation, the combination of aknife carrier, a guide plate distanced therefrom forming a slot throughwhich the foundation is passed during cutting action, a knife mounted onthe carrier substantially parallel to the guide plate and in alinementwith the slot, said guide plate and carrier supporting the foundation infront of the knife.

2. In a machine for cutting embroidery foundation, the combination of aknife carrier, a guide plate distanced therefrom forming a slot throughwhich the foundation is passed during cutting action, a knife mounted onthe carrier in the slot parallel tothe guide plate, said guide plate andcarrier supporting the foundation in frontof the knife.

3. In a machine for cutting embroidery foundation, the combination of aknife carrier, a guide plate distanced therefrom forming a slot throughwhich the foundation is passed during cutting action, and a knifepivoted on the carrier substantially parallel to the guide plate andhaving its cutting edge projecting above the guide plate and carrier.

1. In a machine for cutting embroidery foundation, the combination of aknife carrier, a guide plate distanced therefrom forming a slot throughwhich the foundation is passed during cutting action, a knife pivotallymounted parallel to the guide plate and between the latter andthe'carrier and having its cutting edge extending above the same, and aspring on the carrier to yieldingly hold. the knife in operativeposition.

5. In a machine for cutting embroidery, the combination of a knifecarrier, a guide plate distanced therefrom forming a slot through whichthe fabric is guided, and a knife in alinement With the slot adapted tocut the foundation up to the beginning of the embroidery and from theend of the embroidery.

In testimony that I claim the foregoing as my invention, I have signedmy name in presence of two subscribing Witnesses.

ALOIS TSCHERNE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

